You can translate your store data only with DeepL Pro translation driver.
- From your LangShop Admin > open Settings > Pro Translation drivers > DeepL Professional.
How to get DeepL Translate API Key?
The DeepL API is accessible with a DeepL Pro subscription (DeepL API plan). You need to have a paid account on DeepL Pro Plan to generate API Key and use it in LangShop. You can find your key in your account settings. Log in to your DeepL Account.
From your DeepL Pro Account > find Authentication Key for DeepL API.
Add an API key in LangShop > Save.